Mary Ann K. Allison, MD, FACP

Mary Ann Allison, MD, FACP started her career in healthcare as a laboratory technologist earning her MT (ASCP) from Baylor University Medical Center in Dallas, Texas. Soon after, she obtained her MD at the University of Texas Medical Branch in Galveston, Texas. She completed her internship and residency in internal medicine as well as her fellowship in hematology/oncology at Baylor University Medical Center- in Dallas.

Breast Cancer, Genetic Inheritance Evaluation, Research

For more than 20 years, Dr. Allison has been practicing as a medical oncologist. She is one of the founding members and serves as Practice President of Comprehensive Cancer Centers of Nevada, the largest oncology provider in the state of Nevada. Dr. Allison has also served as Principal Investigator on numerous clinical research studies for breast cancer and helped foster the practice’s research affiliation with The US Oncology Network. The trials she participated in have changed the standard of care for breast cancer and led to the FDA approval of Paclitaxel and Herceptin.

Dr. Allison is a member of the breast cancer research committee for The US Oncology Network. She is co-founder of The Caring Place, a program of Nevada Childhood Cancer Foundation that provides complementary therapies to those touched by cancer.

For her commitment to patient care and betterment of the medical community, Dr. Allison has received numerous awards and recognitions including Medical Marvels by Nevada Business Magazine and Top Doctor in the Medical Oncology category by Vegas Seven. She was the recipient of the 2010 Athena Leadership Award through the Women’s Chamber of Commerce and inducted into the Women’s Chamber of Commerce Hall of Fame in 2011. She received the Healthcare Hero Award for compassionate caregiver in 2011, and in 2013 she received the Commitment to Health Award from United Way of Southern Nevada’s Women’s Leadership Council. In 2014 she received the Woman of Distinction Award in healthcare from the National Association of Women Business Owners and was selected as the 2015 Governor’s Points of Light winner in the Individual Southern Nevada category by Nevada Volunteers.

Dr. Allison and her husband of more than 40 years, have two sons. Her hobbies include Pilates, traveling and family activities.

Medical Technologist, American Society of Clinical Pathology
Internal Medicine, American Board of Internal Medicine
Medical Oncology, American Board of Internal Medicine

American Society of Clinical Oncology
American College of Physicians, Fellow
Clark County Medical Society
Nevada Medical Association
Texas Medical Association

Southeast Henderson

News & Videos

Media coverage of our physicians, treatments and industry information.
Click here for more news

Visit our video library to learn more about CCCN.
Click here to watch

Clinical Research

Comprehensive Cancer Centers of Nevada is helping patients by providing state-of-the-art treatment through clinical research studies.
Resources for Physicians
Resources for Patients


Our Practice complies with the Office for Civil Rights and does not discriminate based on race, color, national origin, sex, age or disability. View the notice by clicking here.

Contact Us

This form is not intended for current patients of CCCN. If you are a patient, please contact your treatment center with any questions.

If you are experiencing a medical emergency, please call 911 immediately or go to the nearest emergency room. This form is not intended for emergencies.